Which Design Works Better Practice Test

Keisha and Chen tested bases to keep a block statue standing. Design A has a narrow base and it tipped (yes). Design B has a wide base and it stayed up (yes). A tried to stand, but tipping was a weakness. B was strong because it stayed stable. They must pick the base that solves the tipping problem. Design B works better than Design A because the data shows it stayed up. The wide base keeps it from tipping, so it stands safely. Using the test results, which design should they choose and why?

In science discussion, Chen and Maya tested two shelves to store books. Design A had 1 shelf and held 8 books. Design B had 3 shelves and held 24 books. Both designs tried to solve the storage problem, but one held more books. Design B’s strength is more shelves give more room, and Design A’s weakness is less space. Chen said, “We should use the data to decide.” Maya pointed to 24 and said, “That is more than 8.” The teacher asked, “How do you know which shelf works better?” Based on the data, how do they know Design B works better?